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路在何方
路漫漫其修遠兮，吾將上下而求索。
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樓主  發(fā)表于: 2016-08-17 09:31
      剛接觸威綸這屏幕，它搞個(gè)寫(xiě)入/讀出的地址不一樣是為什么？目的何在？而有些原件又不用這種方式�？磮D [attachment=150933] [attachment=150934]  
liwu812
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1樓  發(fā)表于: 2016-08-17 09:59
寫(xiě)入/讀出的地址不一樣主要是用來(lái)確認按鍵（開(kāi)關(guān)）按下去的后續條件是否滿(mǎn)足，讀出地址必定是跟寫(xiě)入地址相關(guān)聯(lián)的地址，這樣就能直觀(guān)看條件是否滿(mǎn)足；
例：寫(xiě)入地址是M1(自動(dòng)啟動(dòng))，讀取地址是m50(自動(dòng)運行中。。)，若按下按鈕，狀態(tài)未改變時(shí)，則說(shuō)明M50（自動(dòng)運行中）的條件未滿(mǎn)足
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